Bicycle frame



2.1 is a top perspective view of a bicycle frame showing my new design;

2.2 is a front elevation view thereof;

2.3 is a rear elevation view thereof;

2.4 is a right side elevation view thereof;

2.5 is a left side elevation view thereof;

2.6 is a top plan view thereof; and

2.7 is a bottom plan view thereof.

The broken lines shown in Reproductions 2.1-2.7 are for the purposes of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a bicycle frame, as shown and described. 